OpenAILaunchAI ModelsSeptember 10, 2026

OpenAI launches GPT-Live-1 voice model in the API

GPT-Live-1 brings full-duplex voice to the API — it listens and speaks simultaneously rather than taking turns — with custom voices and telephony support. Paired with GPT-6 Astra at medium reasoning effort, it completed 83.6% of Tau3 customer-support tasks on the first attempt.

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  1. Sep 10
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